Excerpts from Li Dongyang's message of 2011-03-24 06:24:24 -0400: > Dear list, > This is V4 of batched discard support, now we will get full mapping of > the free space on each device for RAID0/1/10/DUP instead of just a single > stripe length, and tested with xfsstests 251, Thanks. I've pushed this out into the for-linus branch, along with a full merge to 2.6.39 current git. Please take a look and make sure I've merged it correctly. Thanks! -chris > Changelog V4: > *make btrfs_map_block() return full mapping. > Changelog V3: > *fix style problems. > *rebase to 2.6.38-rc7. > Changelog V2: > *Check if we have devices support trim before trying to trim the fs, also adjust > minlen according to the discard_granularity. > *Update reserved extent calculations in btrfs_trim_block_group(). > *Call cond_resched() without checking need_resched() > *Use bitmap_clear_bits() and unlink_free_space() instead of btrfs_remove_free_space(), > so we won't search the same extent for twice. > *Try harder in btrfs_discard_extent(), now we won't report errors > if it's not a EOPNOTSUPP. > *make sure the block group is cached before trimming it,or we'll see an empty caching > tree if the block group is not cached. > *Minor return value fix in btrfs_discard_block_group(). -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
